ATSAMD20G14B-AUT

Overview

The ATSAMD20G14B-AUT is a Microchip Technology ARM microcontroller based on the Cortex-M0+ core, operating at a maximum frequency of 48 MHz. It features 16 kB of Flash program memory and 2 kB of SRAM data RAM within a 48-TQFP package. The device supports a supply voltage range of 1.62 V to 3.63 V and includes 38 general-purpose I/O pins. Peripheral interfaces include I2C, SPI, and USART. Analog capabilities consist of a 12-bit ADC with 14 channels and a 10-bit DAC. The component operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 32-bit ARM Cortex-M0+ processor for efficient code execution
• Provides multiple communication peripherals including I2C, SPI, and USART
• Includes analog conversion hardware with 14-channel 12-bit ADC and 10-bit DAC

Applications

• Industrial control systems requiring low power consumption
• Consumer electronics utilizing serial communication protocols
• Battery-powered devices operating within standard voltage ranges

Procurement Notes

Verify the specific suffix 'AUT' against official Microchip documentation to confirm automotive qualification status, as standard datasheets may list generic variants. Ensure the 48-TQFP package dimensions match the target PCB footprint. Confirm that the 1.62V to 3.63V supply range aligns with the system power design. Check for any recent product change notifications regarding pinout or electrical characteristics updates.

Selection Notes

Select this component when a balance of moderate memory capacity and rich peripheral connectivity is required in a compact surface-mount package. It serves as a suitable upgrade path from 8-bit controllers for applications needing precise analog input processing via the 14-channel ADC. Consider alternative SAMD20 variants if higher Flash or RAM capacities are necessary for complex firmware implementations.

Part Context

This part belongs to the SAM D20 family of 32-bit ARM Cortex-M0+ microcontrollers designed for low-power applications. The family emphasizes energy efficiency while providing robust peripheral sets. The 'G' designation typically indicates specific pin counts and peripheral configurations within the series, distinguishing it from other package options like QFN or larger TQFP variants.

Replacement Considerations

ATSAMD20G14B-AU: Identical functional specifications but packaged in trays instead of tape and reel.